我嘗試在我的rails 3.2應用程序中爲某些圖像上傳設置carrierwave_direct,但似乎無法通過使用direct_upload_form_for標記呈現表單。rails carrierwave_direct無法呈現direct_upload_form_for表單
我在加載包含表單的頁面時出現錯誤「undefined method`direct_fog_url for#< PostmarkerImage:0x007fdbe07b39f0>」。
PostmarkerImage是我已經安裝上載像這樣的模式:
class PostmarkerImage < ActiveRecord::Base
attr_accessible :image, :image_cache
belongs_to :postmarker
validates :image, :presence => true
mount_uploader :image, PostmarkerImageUploader
end
圖像列是一個字符串,我也保證了遷移已運行到創建列。上傳者現在看起來是這樣的:
class PostmarkerImageUploader < CarrierWave::Uploader::Base
include CarrierWaveDirect::Uploader
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
include CarrierWave::MiniMagick
# Include the Sprockets helpers for Rails 3.1+ asset pipeline compatibility:
include Sprockets::Helpers::RailsHelper
include Sprockets::Helpers::IsolatedHelper
# Choose what kind of storage to use for this uploader:
# storage :file
# storage :fog
include CarrierWave::MimeTypes
process :set_content_type
# Provide a default URL as a default if there hasn't been a file uploaded:
# def default_url
# # For Rails 3.1+ asset pipeline compatibility:
# # asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
#
# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
# end
# Process files as they are uploaded:
# process :scale => [200, 300]
#
# def scale(width, height)
# # do something
# end
# Create different versions of your uploaded files:
# version :thumb do
# process :scale => [50, 50]
# end
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_white_list
%w(jpg jpeg gif png)
end
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
# def filename
# "something.jpg" if original_filename
# end
end
我也保證carrierwave_direct,霧,mini_magick和已經安裝的ImageMagick。我可否知道我還錯過了什麼?它幾乎看起來像上傳器的安裝沒有做好。
我有這個問題。你能否提供你發現的解決方案的明確例子? –
他的意思是,而不是僅僅爲了Image.new的direct_upload_form_do do | f |'你需要'direct_upload_form_for Image.new.image do | f |'(注意.image)。 – IAmNaN